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Finding the Fourth Proportional to 238,609, 357,915.66 and 72,397

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Solution

The fourth proportional to 238,609, 357,915.66 and 72,397 is: 108,596.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,609 : 357,915.66 = 72,397 : x
  2. Step 2: Convert to fraction form
    238,609/357,915.66 = 72,397/x
  3. Step 3: Cross multiply
    238,609x = 357,915.66 × 72,397
  4. Step 4: Simplify right side
    238,609x = 25,912,020,037.02
  5. Step 5: Solve for x
    x = 25,912,020,037.02/238,609
  6. Step 6: Final answer
    x = 108,596.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.